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Dynaflow Rebuild and Lube?

In the process of testing my new Q-Loader setup last night, the piston o-ring in my Dynaflow reg decides to crumble.... and then an on/off o-ring does the same. So I pull out my still factory sealed Centerflag rebuild kit... only to find that all of the urethane o-rings have aged to the point that they crumble when I try to install them.

I found the o-ring kit on oringmonkey.com but it looks like they are using Buna-n o-rings instead of urethane.

My concern is that the buna o-rings won't hold up as well in the dynamic seal areas in the reg.

Does anyone offer a rebuild kit that includes the proper urethane o-rings?

Alternatively, does anyone have a listing of the o-ring sizes in the Dynaflow? Then I can just order the proper orings from Mcmaster.

Also, what lube should I use in this thing? I found a pbnation thread while googling, that said centerflag used white lithium grease... can someone confirm this?

I'm not sure if it makes a difference or not, but my reg is the most recent generation of Dynaflow (the one with the removable rail)

Actually, what is going to REALLY suck is when the reg seat goes. Im still trying to figure out where they got them and what they are made of. I was thinking of making a mold, but Im not that desperate yet

Actually, what is going to REALLY suck is when the reg seat goes. Im still trying to figure out where they got them and what they are made of. I was thinking of making a mold, but Im not that desperate yet

I was on the Internet Wayback Machine a few nights ago searching the captures of centerflagproducts.com and came across a parts breakdown somewhere in the process. The reg seat was labeled as a Kevlar reg seat or something to that effect.